Putin needs a carrot but it must be given with a stick.
The carrot would be that Ukraine will not be invited to join Nato. The stick has to be that Nato will implement a no-invite rule regaring Ukraine when so-called “separatist” forces aided by Russia are completely out of Ukraine and full control of the area is resumed by the government of Ukraine.
The “deal” is that Ukraine would not be joining Nato but Ukraine’s sovereignty and independence will be guaranteed.
That would be a “Trumpian” deal.
Lol, sure like the Budhapest Memorandum that included security assurances against threats or use of force against the territorial integrity or political independence of Ukraine. NATO membership is the only real guarantee of independence for any neighbor of Putin.